Can I eat salted chips after whitening teeth?

You can anything after whitening. You may want to stay away from foods like red wine, coffee and tea which will stain your teeth again. You may also want to avoid very cold foods, as your teeth may be sensitive to cold foods after a whitening treatment. 

Hello, the first 48 hours avoid eating and drinking things with too much colorant such as wine, coffee, chocolate, tea, etc. 

You can eat anything after you whitening your teeth. Dark foods and fluids will stain them sooner but you can eat or drink anything.